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Article Dans Une Revue Corrosion Science Année : 2011

Oxidation of φ'-aluminium oxynitride

Résumé

The oxidation in air of single crystal φ'-aluminium oxynitride (AlON) grains has been characterized by thermogravimetry and X-ray diffraction in the 1273-1673. K range. Two oxidation stages have been observed, suggesting the formation of a transitional phase. Below 1473. K, oxidation results in the apparition of platelets and noodle-like crystals on the surface of the initially faceted single crystals. Above 1473. K, low density α-alumina polycrystals start forming on the grain surface and grow towards the grain core with increasing temperature or time. Their low density is mainly due to the presence of a network of nano-porosities. © 2010 Elsevier Ltd.
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hal-01813672 , version 1 (12-06-2018)

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E. Xolin, Yves Jorand, Christian Olagnon, Laurent Gremillard. Oxidation of φ'-aluminium oxynitride. Corrosion Science, 2011, 53 (3), pp.939-945. ⟨10.1016/j.corsci.2010.11.023⟩. ⟨hal-01813672⟩
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